Hydranautics 4″ Nanofiltration Membranes – Aqua Components

Hydranautics NANO-BW-4040 Membrane

aqua@2025 — Thu, 13 Mar 2025 12:48:41 +0000

4″ inch membrane elements designed by Hydranautics and incorporated with features to greatly enhance water treatment performance in your system. Features include brine seal, o-rings, and interconnector with a cardboard boxing being used to package the membrane element (enclosed in a water-filled bag).

Models

NANO-BW-4040 Specifications:

Configuration: Spiral Wound
Membrane Polymer: Composite Polyamide
Nominal Membrane Area: 75 ft2 (7 m2 )
Feed/Brine Spacer Thickness: 34 mil (0.87 mm)

Membrane Element Performance:

MgSO4

Permeate Flow (Nominal): 2,000 gpd (7.6 m³/d)
MgSO4 Rejection (Nominal): 99.7% (99.5% minimum)

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.14 MPa)
Maximum Continuous Chlorine Concentration1: 10 PPM
Maximum Chlorine Concentration: < 0.1 ppm
Maximum Operating Temperature: 113 °F (45 °C)
Operating pH Range: 3 – 9 (1 – 11.5)
Cleaning pH Range: 1.0 NTU
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Feed Flow: 16 gpm (3.6 m3/h)
Maximum Pressure Drop per element: 15 psi

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics NANO-BW-4040 Membrane Data Sheet

Hydranautics HydraCoRe70-4040 Membrane

aqua@2025 — Thu, 13 Mar 2025 12:48:39 +0000

Hydranautics HydraCoRe70-4040 Membrane provide important features such as chemical and oxidant resistance through high quality sulfonated polyethersulfone elements. These nanofiltration elements are designed to eradicate color from water, including organic substances from product water, industrial process, municipal water supply.

Models

Type

Outerwrap: FRP hard shell
Membrane Polymer: Sulfonated Polyethersulfone
Molecular Weight Cut-off 720 daltons

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (41 Bar)
Maximum Continuous Chlorine Concentration 1: 10 PPM
Maximum Chlorine Concentration for Cleaning 1: 100 PPM
Maximum Operating Temperature: 113°F (45°C)
Operating pH Range: 2-11*
Cleaning pH Range: 1-12
(For cleaning temperatures <35C)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Pressure Drop per element 10 psi

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics HydraCoRe70-4040 Membrane Data Sheet

Hydranautics HydraCoRe70 pHT-4040 Membrane

aqua@2025 — Thu, 13 Mar 2025 12:48:38 +0000

Hydranautics HydraCoRe70 pHT-4040 Membrane provide terrific flux capabilities and are designed to be resistant to chlorine. These nanofiltration membranes are highly effective in removing color from water and other unwanted substances from water such as fats, proteins, and oils.

Models

Specifications:

Model

Feed Spacer inch (cm)

Area, ft² (m²)

Max Feed Flow, gpm (m³/hr)

Dimensions, inches. (cm)

Max. Pressure Drop per Element,psi (bar)

HYDRACoRe70pHT1 4040-46

0.046 (0.12)

70 (6.5)

30 (6.8)

40.0 (101.6)

3.98 (10.1)

0.75 (1.9) OD

15 (1.0)

General Product Description

Configuration: Sanitary Spiral Wound
Membrane Polymer: Sulfonated Polyethersulfone

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psi (41 bar)
Maximum Continuous Chlorine Concentration2: 10 ppm
Maximum Chlorine Concentration for Cleaning2: 100 ppm
Maximum Operating Temperature: 158°F (70°C)
Operating pH Range: 1-13.5
Cleaning pH Range: 1-13.5
Maximum Pressure Drop for a vessel: 60 psi (4 bar)

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics HydraCoRe70 pHT-4040 Membrane Data Sheet

Hydranautics HYDRACoRE50-LD-4040 Membrane

aqua@2025 — Thu, 13 Mar 2025 12:39:09 +0000

Hydranautics’ HYDRACoRe (Hydranautics Color Removal) membranes are sulfonated polyethersulfone-based spiral-wound, crossflow elements that can be used for potable water as well as industrial applications in which color reduction with minimal removal of dissolved salts is desired. The key advantage of the HYDRACoRe®technology is the membranes’ superior chlorine-tolerance ( up to 100 ppm chlorine during short term cleansing)

These are HYDRACoRe10 and HYDRACoRe50 membranes made as a traditional RO style fiber glass element with a low fouling brine spacer used to treat industrial, food and beverage and municipal feed waters. These come in 4 inch and 8 inch diameter sizes.

Models

HYDRACoRe50-LD-4040 Specifications:

Configuration: Spiral wound with FRP hard shell
Membrane Polymer: Sulfonated Polyethersulfone
Molecular Weight Cut-off Hydracore10: 3000 Dalton
Molecular Weight Cut-off Hydracore50: 1000 Dalton

Model	Feed Spacer inch (cm)	Area, ft² (m²)	Permeate Flow	NaCl Rejection			Test Pressure
Model	Feed Spacer inch (cm)	Area, ft² (m²)	GPD (m³/d)	Average	Min	Max	PSI (MPa)
HYDRACoRe10-LD-4040	0.034 (0.086)	80 (7.4)	3,000 (11.4)	20%	5%	25%	50 (0.34)
HYDRACoRe50-LD-4040	0.034 (0.086)	80 (7.4)	3,150 (11.9)	50%	40%	60%	140 (0.97)

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

2000 ppm NaCl solution
20% Permeate Recovery
6.5 +/- 0.5 pH Range
77 °F (25 °C) Operating Temperature

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.14 MPa)
Maximum Continuous Chlorine Concentration1: 10 PPM
Maximum Chlorine Concentration for Cleaning1: 100 PPM
Maximum Operating Temperature: 113 °F (45°C)
Operating pH Range: 2-11
Cleaning pH Range: 1-12(For cleaning temperatures 35°C)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Pressure Drop per element: 10 psi

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics HydraCoRe50-LD-4040 Membrane Data Sheet

Hydranautics HYDRACoRe10-LD-4040 Membrane

aqua@2025 — Thu, 13 Mar 2025 12:39:07 +0000

Models

HYDRACoRe50-LD-4040 Specifications:

Configuration: Spiral wound with FRP hard shell
Membrane Polymer: Sulfonated Polyethersulfone
Molecular Weight Cut-off Hydracore10: 3000 Dalton
Molecular Weight Cut-off Hydracore50: 1000 Dalton

Model	Feed Spacer inch (cm)	Area, ft² (m²)	Permeate Flow	NaCl Rejection			Test Pressure
Model	Feed Spacer inch (cm)	Area, ft² (m²)	GPD (m³/d)	Average	Min	Max	PSI (MPa)
HYDRACoRe10-LD-4040	0.034 (0.086)	80 (7.4)		20%	5%	25%	50 (0.34)
HYDRACoRe50-LD-4040	0.034 (0.086)	80 (7.4)	3,150 (11.9)	50%	40%	60%	140 (0.97)

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

2000 ppm NaCl solution
20% Permeate Recovery
6.5 +/- 0.5 pH Range
77 °F (25 °C) Operating Temperature

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.14 MPa)
Maximum Continuous Chlorine Concentration1: 10 PPM
Maximum Chlorine Concentration for Cleaning1: 100 PPM
Maximum Operating Temperature: 113 °F (45°C)
Operating pH Range: 2-11
Cleaning pH Range: 1-12(For cleaning temperatures 35°C)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Pressure Drop per element: 10 psi

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics HydraCoRe10-LD-4040 Membrane Data Sheet

Hydranautics ESNA1-LF2-LD-4040 Membrane

aqua@2025 — Thu, 13 Mar 2025 12:36:46 +0000

ESNA1-LF2-LD-4040 are high performance nanofiltration membranes ideal for softening applications and the removal of pesticides, bacteria or viruses. They provide 50%-90% salt rejection with ultra-low-pressure operations, increased energy savings, and significantly lower installation and operating costs.

Models

ESNA1-LF2-LD-4040 Specifications

Permeate Flow: 2,000 gpd (7.6 m³/d)
CaCl₂ Rejection: 86%
CaCl₂ Rejection (minimum/maximum): 83%/94%

*Expected calcium rejection for a typical 500 ppm well water is 96% at 13 gfd operating flux and 25°C.

Configuration: Low Fouling Spiral Wound
Membrane Polymer: Composite Polyamide
Membrane Active Area: 80ft² (7.43m²)
Feed Spacer: 34 mil (0.864 mm) with biostatic agent

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

500 ppm CaCl₂
75psi (0.52 MPa) Applied Pressure
77°F (25°C) Operating Temperature
15% Permeate Recovery
6.5 – 7.0 Feed pH

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.16 MPa)
Maximum Chlorine Concentration: < 0.1 PPM
Maximum Operating Temperature: 113°F (45°C)
pH Range, Continuous (Cleaning): 2-10 (1-12)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Feed Flow: 16 GPM (3.6 m³/h)
Minimum Ratio of Concentrate to Permeate Flow for any Element: 5:1
Maximum Pressure Drop for Each Element: 10 psi

The limitations shown here are for general use. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane. See Hydranautics Technical Bulletins for more detail on operation limits, cleaning pH, and cleaning temperatures.

Applications

Softening applications
Removal of pesticides, bacteria, or viruses
Municipal water treatment

Docs

Hydranautics ESNA1-LF2-LD-4040 Membrane